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function x = cs_ltsolve (L,b) %#ok
%CS_LTSOLVE solve a sparse upper triangular system L'*x=b.
% x = cs_ltsolve(L,b) computes x = L'\b, L must be lower triangular with a
% zero-free diagonal. b must be a full vector.
%
% Example:
% Prob = ssget ('HB/bcsstk01') ; L = cs_chol (Prob.A) ; n = size (L,1) ;
% b = rand (n,1) ; x = cs_ltsolve (L,b) ; norm (L'*x-b)
%
% See also CS_LSOLVE, CS_USOLVE, CS_UTSOLVE, MLDIVIDE.
% CXSparse, Copyright (c) 2006-2022, Timothy A. Davis. All Rights Reserved.
% SPDX-License-Identifier: LGPL-2.1+
error ('cs_ltsolve mexFunction not found') ;
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